Glossary Corrosion: All Listings RSS

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A substance that produces depolarization.

The ratio of the electrochemical equivalent current density for a specific reaction to the total applied current density.

Foreign substance which comes from the environment, adhering to a surface of a material

The destruction of adhesion between a coating and the surface coated.

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The range of the stress-intensity factor during a fatigue cycle.

The potential corresponding to the maximum active current density (critical anodic current density) of an electrode that exhibits active-passive corrosion behavior.

The electroplating of zinc upon iron or steels

Removing the thick layer of oxides formed on some metals at elevated temperatures.

(1) The amount of any substance dissolved or deposited in electrolysis is proportional to the total electric charge passed. (2) The amounts of different substances dissolved or deposited by the passage of the same electric charge are proportional to their ...

The mass of unit volume of a material at a specified temperature.

Loss of carbon from the surface layer of a carbon-containing alloy due to reaction with one or more chemical substances in a medium that contacts the surface. See also dealloying.

Electrochemical system consisting of an anode and a cathode immersed in an electrolyte. The anode and cathode may be separate metals or dissimilar areas on the same metal. The cell includes the external circuit, which permits the flow of electrons from th ...

An accelerated corrosion test for some electrodeposits for anodic coatings on aluminum.

A process involving conjoint corrosion and cavitation.

The number of cycles of stress that can be sustained prior to failure under a stated test condition.

Ability of a metal to withstand corrosion in a given corrosion system.

The difference between the actual electrode potential when appreciable electrolysis begins and the reversible electrode potential.

The process in which a metal fractures prematurely under conditions of simultaneous corrosion and repeated cyclic loading at lower stress levels or fewer cycles than would be required in the absence of the corrosive environment.

That portion of the base metal that was not melted during brazing, cutting, or welding, but whose microstructure and mechanical properties were altered by the heat; Refers to area adjacent to a weld where the thermal cycle has coused microstructural chang ...

A metastable lamellar aggregate of ferrite and cementite resulting from the transformation of austenite at temperatures above the bainite range.

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